23533225 has 6 divisors (see below), whose sum is σ = 29181230. Its totient is φ = 18826560.

The previous prime is 23533217. The next prime is 23533243. The reversal of 23533225 is 52233532.

It can be written as a sum of positive squares in 3 ways, for example, as 1024 + 23532201 = 32^2 + 4851^2 .

It is not a de Polignac number, because 23533225 - 2³ = 23533217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 941329 = 23533225 / (2 + 3 + 5 + 3 + 3 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 23533225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 470640 + ... + 470689.

Almost surely, 2^23533225 is an apocalyptic number.

23533225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23533225 is a deficient number, since it is larger than the sum of its proper divisors (5648005).

23533225 is an equidigital number, since it uses as much as digits as its factorization.

23533225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941339 (or 941334 counting only the distinct ones).

The product of its digits is 5400, while the sum is 25.

The square root of 23533225 is about 4851.1055441002. The cubic root of 23533225 is about 286.5676412671.

Adding to 23533225 its reverse (52233532), we get a palindrome (75766757).

It can be divided in two parts, 23533 and 225, that multiplied together give a palindrome (5294925).

The spelling of 23533225 in words is "twenty-three million, five hundred thirty-three thousand, two hundred twenty-five".